The HIV/AIDS pandemic represents a major development crisis for the African continent,
which is the worst affected region in the world. Currently, almost 30 of the 42 million people …

HIV-1C has become the dominant HIV-1 subtype in the global AIDS epidemic. Historically,
the evolution of drug-resistant mutations was characterized primarily among antiretroviral …

Recombinant human immunodeficiency virus type 1 (HIV-1) strains containing sequences
from different viral genetic subtypes (intersubtype) and different lineages from within the …

Background: Most data on HIV prevalence in Malawi come from antenatal clinic (ANC)
surveillance and are, therefore, subject to bias. Objectives: HIV prevalence and risk factors …

The human immunodeficiency virus (HIV) pandemic continues to grow at an alarming rate,
with a further 5 million new infections in 2003. Some 3.5 million of these were in sub …

HIV prevalence has decreased in Uganda since the 1990s, but remains substantial within
high-risk groups. Here, we reconstruct the history and spread of HIV subtypes A1 and D in …

Background The genetic diversity of human immunodeficiency virus type 1 (HIV-1) raises the
question of whether vaccines that include a component to elicit antiviral T cell immunity …

This study investigated the genotype and phenotype of HIV-1 isolates of 20 South African
AIDS patients. We found the highest percentage of CXCR4 usage among primary isolates …

Objective: To investigate the origins and evolutionary history of subtype C HIV-1 in
Zimbabwe in a context of regional conflict and migration. Design: HIV-1C pol sequence …

HIV subtype C is the most prevalent subtype in the world. Despite its recent expansion in
Brazil, HIV-1C already prevails in the southernmost state of Brazil, Rio Grande do Sul. This …